青海毛肉兼用半细毛羊同期发情及提高受胎率的试验(二)  

Experiment of Synchronization of Estrus and Improvement of Conception Rate in Qinghai semifinewool Sheep of Wool meat Dual purpose

作　　者：王应安[1] 张寿[1] 张勤文[1] 马清德[2] 拉毛彭措[2] 景建武 张纪元 马玉林 

机构地区：[1]青海大学农牧学院 [2]青海省河卡种羊场 [3]青海省海西州牧科所

出　　处：《青海畜牧兽医杂志》1998年第6期8-11,共4页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：青海省科委1996年资助

摘　　要：采用不同生殖激素在９７３只青海毛肉兼用半细毛羊中进行同期发情和提高受胎率试验。结果表明：①５ｄ和１０ｄ内的同期发情率，总受胎率在Ｐ４＋ＰＭＳＧ组分别为７６．３２％、９７．３６％和９４．７４％；Ｐ４＋ＩＣＩ８０９９６组为９０．０％、１００％和１００％；ＰＭＳＧ组为６３．１６％、９５．７９％和９４．７４％；ＩＣＩ８０９９６组为８２．９１％、９５．５７％和９４．９３％，同期发情效果均显著或极显著高于对照组（４７．３３％、７６．００％和８８．６７％）。②第一情期受胎率和总受胎率（平均值）ＬＲＨ—Ａ组分别为９３．０２％和９６．８９％；ｈＣＧ组为８８．８１％和９３．６６％；ＬＨ组为９５％和９５％，均显著高于对照组（７１．２５％和７８．００％）。An experiment of synchronization of estrus and improvement of conception rate was conducted in 973 Qinghai semifinewool sheep,of wool meat dual purpose using different reproductive hormone.The results were as follows:(1)The rate of the synchronization of estrus during the period of 5 days and 10 days and the total conception rete in the groups treated using P+PMSG were 76.32%,97.36% and 94.75% resp,90.0% ,100% and 100% in the group treated using P 4+ICI80996 resp ;63.16%,95.79% and 94.74% in the group treated using PMSG resp;82.91%,95 57% and 94.93% in the group treated using ICI80996 resp.The effects of synchronization of estrus in the treated groups were very significantly or significantly better than that in the control group(47.33%,76.00% and 88.67%),There was no significant difference in the total conception rate between the treated groups and control group.(2)The first non return rate and the total conception rate in the LRH A group, hCG group and the LH group were 93.02% and 96.89%, 88.81% and 93.66%, 95.00% and 95.00% resp.and were significantly higher than that in the control group(71.25% and 78%).

关 键 词：青海高原 半细毛羊 生殖激素 同期发情 受胎率 

分 类 号：S826.3[农业科学—畜牧学]